Struct ProofNode 

pub struct ProofNode {
    pub rule: String,
    pub detail: Option<String>,
    pub conclusion: String,
    pub premises: Vec<ProofNode>,
}

One step of a derivation, as the drawer draws it: the rule’s word, what the rule was applied with (the term a universal was instantiated at, a witness), the conclusion it reached, and the steps it rests on.

Fields

rule: String

detail: Option<String>

conclusion: String

premises: Vec<ProofNode>

Implementations

impl ProofNode

pub fn is_given(&self) -> bool

A premise taken as given: the leaf a derivation rests on.

Trait Implementations

impl Clone for ProofNode

fn clone(&self) -> ProofNode

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ProofNode

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for ProofNode

fn eq(&self, other: &ProofNode) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ProofNode